Notre Dame, IN has a population of 6,724 and is the 5,320th largest city in the United States. The population density is 5,604 per sq mi which is 3022% higher than the Indiana average and 6085% higher than the national average. The median age in Notre Dame is 21 which is approximately 45% lower than the Indiana average of 37. In Notre Dame, 1% of the population over 15 years of age are married, 85% speak English and 3% speak Spanish. 16% of Notre Dame residents were born in Indiana, 72% were born out of state, 1% were born outside of the United States and 10% were foreign born.